topic Problems with telnet in Operating System - HP-UX

Problems with telnet

Jairo Campana — Thu, 11 Oct 2001 19:56:40 GMT

I have the following problem: I have a server A44-400 model and I cannot enter from telnet, sometimes I can connect and work, but sometimes not
C:\>telnet 172,31,198,212 Connecting itself to 172.31.198.212... The connection with host is had lost.
locally, telnet does not work(telnet 127.0.0.1 no reponse, telnet 172.31.198.251 no reponse), exists ping, / sbin/init.d/net start is ok,the configuration the netconf is ok. FTP works OK, service telnet is ok:
telnet 172.31.251 80 (is ok, response)
the card network is ok is up and running

nota:sorry, by my writing

Re: Problems with telnet

someone_4 — Thu, 11 Oct 2001 20:50:39 GMT

what about /etc/inetd.conf it must contain an entry as follows uncommented:

telnet stream tcp nowait root /usr/lbin/telnetd telnetd

If it is commented out or not there
after editing the file
#/usr/sbin/inetd -c
to reread the file

Richard

Re: Problems with telnet

Sridhar Bhaskarla — Thu, 11 Oct 2001 21:06:40 GMT

Jairo,

I didn't quite understand your question. Looks like you have DNS problems (believe me though you are specifying the IPaddresses).DO you use DNS?. If not, take out /etc/resolv.conf. If you use DNS, make sure that the entries are fine.

Next, you should be able to ping 127.0.0.1 anytime. Not means, your network is down, you need to check the status by ifconfig.

-Sri

Re: Problems with telnet

Sachin Patel — Thu, 11 Oct 2001 21:31:56 GMT

Hi Jairo,
Is you lan card down.
ifconfig lan0

Sachin

Re: Problems with telnet

Jeffrey S. Sims — Thu, 11 Oct 2001 22:53:05 GMT

I aggree with Richard,

Check your /etc/services for the telnet entry
Check /etc/inetd.conf for the corrent entry

Also check /var/adm/inetd.sec for a line similar to:

telnet deny all

This would deny all telnet access to your box.

Hope it helps

Re: Problems with telnet

Printaporn_1 — Fri, 12 Oct 2001 02:56:10 GMT

use
#netfmt -t 50 -f /var/adm/nettl.LOG00 > /tmp/nettl

check /tmp/nettl for any duplicate IP message.

Re: Problems with telnet

Jairo Campana — Fri, 12 Oct 2001 11:51:52 GMT

these are my configurations

the card net is up and runnig
the inetd.conf this well
inet.sec no deny a telnet

/etc/resolv.conf this well ,ok
the services the net is running
/etc/rc.config/netconf:
HOSTNAME="mocosoft"
OPERATING_SYSTEM=HP-UX
LOOPBACK_ADDRESS=127.0.0.1

##card net
INTERFACE_NAME[1]=lan0
IP_ADDRESS[1]=172.31.198.251
SUBNET_MASK[1]=255.255.255.0
BROADCAST_ADDRESS[1]=172.31.197.255
INTERFACE_STATE[1]=up
DHCP_ENABLE[1]=0

## the route
ROUTE_DESTINATION[2]="net 172.31.195.128"
ROUTE_MASK[2]="255.255.255.128"
ROUTE_GATEWAY[2]=172.31.198.1
ROUTE_COUNT[2]=1
ROUTE_ARGS[2]=""

#inetd.conf
telnet stream tcp nowait root /usr/lbin/telnetd telnetd

#ifconfig lan0
lan0: flags=843
inet 172.31.198.251 netmask ffffff00 broadcast 172

# cat inetd.sec
srs allow

am going to prove to use nettl

Re: Problems with telnet

Darrell Allen — Fri, 12 Oct 2001 12:10:30 GMT

Hello Jairo,

Your broadcast address (172.31.197.255) does not match the network address (172.31.198.251). If the net address is correct the broadcast should be 172.31.198.255 for mask 255.255.255.0

Darrell

Re: Problems with telnet

Jairo Campana — Fri, 12 Oct 2001 13:29:21 GMT

I had a write error
172.31.197.255 x 172.31.198.255
sorry , is
but I follow such with problems
##card net
INTERFACE_NAME[1]=lan0
IP_ADDRESS[1]=172.31.198.251
SUBNET_MASK[1]=255.255.255.0
BROADCAST_ADDRESS[1]=172.31.198.255
INTERFACE_STATE[1]=up
DHCP_ENABLE[1]=0

now I am uninstalled bundless and patches

Re: Problems with telnet

Jairo Campana — Fri, 12 Oct 2001 13:46:55 GMT

#netfmt -t 50 -f /var/adm/nettl.LOG00 > /tmp/nettl

!! vi nettl!!

it does not report errors

Re: Problems with telnet

Sridhar Bhaskarla — Fri, 12 Oct 2001 15:03:33 GMT

Jairo,

Can you take out the ROUTE statements from your configuration and see if it works?.

#route delete net 172.31.195.128 netmask 255.255.255.128 172.31.198.1

Make it as the default router.

#route add default 172.31.198.1 1

I know this may not what you want depending on your setup. DId you try this out just to make sure the usual setup works?.

-Sri